On Tue, Mar 31, 2020 at 02:39:47PM +0200, Hans de Goede wrote:
> The Acer Aspire 5738z has a button to disable (and re-enable) the
> touchpad next to the touchpad.
>
> When this button is pressed a LED underneath indicates that the touchpad
> is disabled (and an event is send to userspace and GNOME shows its
> touchpad enabled / disable OSD thingie).
>
> So far so good, but after re-enabling the touchpad it no longer works.
>
> The laptop does not have an external ps2 port, so mux mode is not needed
> and disabling mux mode fixes the touchpad no longer working after toggling
> it off and back on again, so lets add this laptop model to the nomux list.
>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Applied, thank you. Also marked for stable.
> ---
> drivers/input/serio/i8042-x86ia64io.h | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
> index dc974c288e88..08e919dbeb5d 100644
> --- a/drivers/input/serio/i8042-x86ia64io.h
> +++ b/drivers/input/serio/i8042-x86ia64io.h
> @@ -530,6 +530,17 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
> DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
> },
> },
> + {
> + /*
> + * Acer Aspire 5738z
> + * Touchpad stops working in mux mode when dis- + re-enabled
> + * with the touchpad enable/disable toggle hotkey
> + */
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
> + },
> + },
> { }
> };
>
> --
> 2.26.0
>
--
Dmitry
